CN2693979Y

CN2693979Y - Starting shaft mechanism for engine of motorcycle

Info

Publication number: CN2693979Y
Application number: CN 200420034284
Authority: CN
Inventors: 尹明善; 李力; 代波
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2004-04-09
Filing date: 2004-04-09
Publication date: 2005-04-20
Anticipated expiration: 2014-04-09

Abstract

The utility model provides a starting shaft mechanism for engine of motorcycle, which is characterized in that the middle part of the starting shaft 17 is provided with a ratchet 11, one side of the ratchet 11 is corresponding to a pawl end of the starting gear 14 which is nominally sheathed on the starting shaft 17, the other side of the ratchet 11 is provided with a ratchet spring base 7 which is fixedly sheathed on the starting shaft 17, the springs 8 is arranged between the ratchet spring base 7 and the ratchet 11, the external side of the ratchet spring base 7 is sheathed with a spring base 5 and a spring supporting base 3 sliding along the starting shaft 17, a starting return spring 4 is sheathed on the outside of the spring base 5 and the spring supporting base 3. The utility model can start the engine at arbitrary gearshift and has simple structure, stable and reliable performance, easy use and low cost.

Description

Motorcycle engine starting shaft mechanism

One, technical field:

The utility model relates to a kind of accessory of motorcycle engine, relates in particular to a kind of motorcycle engine starting shaft mechanism.

Two, background technique:

At present, the rear-mounted manual clutch horizontal engine of the little discharge capacity of existing 50～150ml is at riding type car, use quite general on beam bending bicycle and the tricycle, the starting shaft mechanism of this motor is mainly by starting shaft, spring seat, spring, ratchet, starting gear constitutes, wherein ratchet and starting gear are installed in an end of starting shaft, spring seat and spring are positioned at the starting shaft middle part, the spring seat of this starting shaft mechanism, spring, ratchet and starting gear all are positioned at the left crankcase of motor, during this engine start, rotate by 1 grade of tooth that the free gear on the countershaft drives on the main shaft by the starting gear on the engine start axle, 1 grade of moving main shaft of cingulum rotates, the driven gear that main shaft drives on the clutch housing rotates, the driving gear that driven gear drives on the bent axle again rotates, thereby pilots engine.But must fall back on neutral gear earlier in the time of will resetting after this Engine Series is flame-out, promptly make 1 grade of tooth and the engagement of the free gear on the countershaft on the main shaft again, but limit in the mounting point of starting shaft and the existing structural limitations of major and minor axle owing to be subjected to the structural limitations and the starting gear of engine start axle, to reset after this Engine Series is flame-out and must fall back on neutral gear, need when moving back grade vehicle is moved forward and backward conveniently to move back shelves, this has brought great inconvenience just for the user in the use of reality.The disclosed patent No. of State Intellectual Property Office is 00244666.9 Reverse of Motorcycle Engine starting mechanism now, it is mainly by Returnning spring, spring seat, starting shaft, friction spring, the starting ratchet, starting gear constitutes, during the entire mechanism starting, mainly the effect by the friction spring on the starting ratchet makes starting ratchet and starting gear engagement, the external part of friction spring is articulated on the left crankcase, and be enclosed within the Returnning spring of starting shaft, spring seat, starting ratchet and starting gear all are to be contained in the left crankcase of motor, it can not be made starting shaft and use, and can only be used as reverse gear mechanism.

Three, summary of the invention:

The purpose of this utility model provides a kind of motorcycle engine starting shaft mechanism that all can pilot engine when any gear.

Concrete scheme of the present utility model is: a kind of motorcycle engine starting shaft mechanism, comprise starting shaft, starting gear, ratchet, spring seat, start return spring, spring bearing housing, the ratchet spring seat, spring, it is characterized in that: the middle part at starting shaft is equipped with ratchet, one side of ratchet is corresponding with the empty starting gear ratchet end that is enclosed within on the starting shaft, its opposite side is provided with the ratchet spring seat that is solidly set on the starting shaft, between ratchet spring seat and the ratchet spring is arranged, be set with spring seat and the spring bearing housing that slides along starting shaft in the outside of ratchet spring seat, outside spring seat and spring bearing housing, be with the startup return spring.

This programme is installed in ratchet and starting gear at the middle part of starting shaft, carrier gear in starting gear and the former car engine crankcase is in engagement all the time, when starting shaft rotates, starting shaft drives ratchet, ratchet drives the starting gear of engagement, the carrier gear that starting gear drives in the former car engine crankcase rotates, carrier gear drives the associated gear of other engagement and rotates, thereby realization start-up function, thereby no matter motorcycle is in any gear, when piloting engine, the carrier gear that starting gear can both drive in the former car engine crankcase rotates, and realizes that motorcycle all can pilot engine when gear arbitrarily.

Adopt the beneficial effect of such scheme to be: simple in structure, stable performance, reliable, easy to use, cost is low.

Four, description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the annexation figure that starts return spring 4 and left crankcase 22 in the utility model.

Five, embodiment:

From Fig. 1, Fig. 2 is as can be known: the utility model is mainly by packing ring 1, ring washer 2, spring bearing housing 3, start return spring 4, spring seat 5, ring washer 6, ratchet spring seat 7, spring 8, hex head bolt 9, ratchet guide plate 10, ratchet 11, ring washer 12, packing ring 13, starting gear 14, packing ring 15, ring washer 16, starting shaft 17, packing ring 18, oil sealing 19 is formed, it is characterized in that: ratchet 11 is installed at the middle part of starting shaft 17, one side of ratchet 11 is corresponding with the empty starting gear 14 ratchet ends that are enclosed within on the starting shaft 17, its opposite side is provided with the ratchet spring seat 7 that is solidly set on the starting shaft 17, between ratchet spring seat 7 and the ratchet 11 spring 8 is arranged, be set with spring seat 5 and the spring bearing housing 3 that slides along starting shaft 17 in the outside of ratchet spring seat 7, outside spring seat 5 and spring bearing housing 3, be with startup return spring 4.Wherein spring bearing housing 3, startup return spring 4, spring seat 5 are positioned at left crankcase 22, ratchet spring seat 7, spring 8, ratchet 11 are positioned at right crankcase 21, starting gear 14 is positioned at right crankcase cover 20, one end of starting shaft 17 is positioned at left crankcase 22, the other end of starting shaft 17 is positioned at and stretches out right crankcase cover 20, between starting shaft 17 and the right crankcase cover 20 oil sealing 19 is arranged.

From Fig. 1 also as can be known: described ratchet 11 is spacing by ratchet guide plate 10, and ratchet guide plate 10 is installed on the former car engine right crankcase 21 by hex head bolt 9.

From Fig. 1, Fig. 2 also as can be known: start return spring 4 and be articulated on the motor left crankcase 22, spring seat 5 and spring bearing housing 3 are positioned at left crankcase 22, spring seat 7 and ratchet 11 are positioned at right crankcase 21, and starting gear 14 is positioned at the right crankcase cover 20 in right crankcase 21 outsides.

As can be seen from Figure 1: the outer end of starting gear 14 is provided with packing ring 15 and back-up ring 16, and the outer end of spring bearing housing 3 is provided with packing ring 1 and back-up ring 2.

When motor need start, foot-actuated levers makes starting shaft 17 rotations, drive ratchet 11 rotations, ratchet 11 is separated from ratchet guide plate 10, make ratchet 11 and starting gear 14 engagements by spring 8, thereby driving starting gear 14 rotates synchronously with starting shaft 17, rotate thereby make with the associated gear of starting gear 14 engagements, thereby realize the function of starting, meanwhile, starting shaft 1 makes by spring seat 5 and starts return spring 4 compressions, after the engine start, remove pressure to starting lever, under the effect that starts return spring 4, make ratchet 11 and starting shaft 17 synchronous resiliences by spring seat 5, under the effect of ratchet guide plate 10, ratchet 11 separates with starting gear 14, thereby finishes whole starting springback process.

Claims

1, a kind of motorcycle engine starting shaft mechanism, comprise starting shaft (17), starting gear (14), ratchet (11), spring seat (5), start return spring (4), spring bearing housing (3), ratchet spring seat (7), spring (8), it is characterized in that: ratchet (11) is installed at the middle part of starting shaft (17), one side of ratchet (11) is corresponding with starting gear (14) the ratchet end that sky is enclosed within on the starting shaft (17), its opposite side is provided with the ratchet spring seat (7) that is solidly set on the starting shaft (17), between ratchet spring seat (7) and the ratchet (11) spring (8) is arranged, be set with spring seat (5) and the spring bearing housing (3) that slides along starting shaft (17) in the outside of ratchet spring seat (7), outside spring seat (5) and spring bearing housing (3), be with startup return spring (4).

2, motorcycle engine starting shaft according to claim 1 mechanism, it is characterized in that: described ratchet (11) is spacing by ratchet guide plate (10), and ratchet guide plate (10) is installed on the former car engine right crankcase (21) by hex head bolt (9).

3, motorcycle engine starting shaft according to claim 1 mechanism, it is characterized in that: start return spring (4) and be articulated on the motor left crankcase (22), spring seat (5) and spring bearing housing (3) are positioned at left crankcase (22), spring seat (7) and ratchet (11) are positioned at right crankcase (21), and starting gear (14) is positioned at the right crankcase cover (20) in right crankcase (21) outside.

4, motorcycle engine starting shaft according to claim 1 mechanism, it is characterized in that: the outer end of starting gear (14) is provided with packing ring (15) and back-up ring (16), and the outer end of spring bearing housing (3) is provided with packing ring (1) and back-up ring (2).